Heddle or drop-wire



Oct. 10, 1933. E Q SMITH 1,930,152

HEDDLE OR DROP-WIRE Filed Nov. 4, 1951 Patented Oct. 10, 1933 UNITED STATES 1,930,152 HEDDLE' R DROP-WIRE Edwin C. Smith, Providence, R. I., assignor to Rhode Island Warp Stop Equipment Company, Portland, Maine, a corporation of Maine Application November 4, 1931. Serial No. 572,940

9 Claims. (01. 139-94) My invention relates to drop-wires for use with high speed textile machines and more particularly with high speed warpers for silk and rayon. The object of my invention is to provide an eye piece of much harder material than the substance of the drop-wire itself, as of porcelain or other material that is highly resistant to the cutting tendency of silk and rayon when run at high speeds; to provide an eye piece so shaped that when assembled with the drop- Wire, the material running through it shall not touch the setting which secures the eye piece in place; and to provide a setting which shall hold the eye piece securely and in such a manner as shall prevent entangling with neighboring threads or yarns or with adjacent drop-wire.

In the accompanying drawing forming part of my specification:

Fig. 1 shows the preferred construction of my new eye piece and of its setting;

Fig. 2 shows an edge view of the eye piece shown in Fig. 1;

Fig. 3 shows an alternative construction of both eye piece and setting;

Fig. 4 shows an edge view of the eye piece shown in Fig. 3;

Fig. 5 shows my improved eye piece assembled with a drop-wire by means of a clip such as described in a separate application filed concurrently herewith; and

Fig. 6 is a section of Fig. 5 on the line 6-6.

In the following text and in the claims certain terms will carry the meanings here assigned:

The term yarn will be whatever runs through the drop-wire regardless of substance or whether single or ply, twisted or not twisted.

The terms annulus and annular will refer to any enclosed or ring structure whether circular, elliptical or whatever.

The term midplane defines the plane passing through the mid section of the annulus or the section of largest diameter.

My improved eye piece 2 is made from vitreous substance, preferably porcelain, and of annular shape. At or near midplane it is formed with oppositely facing seats. These may be the opposite faces 3 and 4 of a midplane peripheral flange 5 as shown in Figs 2 and 6, or may be the flat bottoms 6-6-6-6 and 7-777 of peripheral indentations 8888, Figs. 3 and 4. This construction provides a plurality of seats, certain of which are oppositely faced to others and all facing in a direction parallel with the axis of the annulus body. Each seat also has an unobstructed way or path of approach which permits the projections of the drop-wire to be bent or formed down upon their respective seats freely and without interference by any portion of the substance of said eye-piece.

In my preferred construction Fig. 1 the dropwire 9 is made with an opening bb corresponding to the outside diameter c-c of the annulus or body of the eye piece 2 but smaller than the diameter dd of theflange 5 of said eye piece. radial gashes 10101010 into the substance of the drop-wire about the hole bb leave inwardly extending projections 111l11--11 and 12- -1212l2. Alternate projections 11- 11-11-1l are bent up, away from the other projections l2121212. The eye piece 2 is placed in the pocket so formed with its flange 5 lying on the projections 1212-l2-12. Then the projections 11-l11111 are bent inwardly and down upon the flange 5, thus setting or securing the eye piece 2 in place. 5

Obviously it is not essential that the projections or points of the setting, as I please to term this device, be of any particular number or size. The projections might be smaller and the space between them could be built up to be a part of the annulus, leaving defined seats, one for each projection. Such a development is shown in Figs. 3 and 4 where the eye piece is made with indentations 8-888, alternate indentations being formed from opposite faces of the annulus toward and beyond the midplane of said annulus. The indentations are of a form to receive the projections, and also formed with flat bottoms 6 -6-66 and 77'77. These fiat bottoms are substantially defined by planes parallel with the midplane of the annulus and the distance between said planes is substantially equal to the thickness of the drop-wire body. The drop-wire body is formed with projections 15-15-15-15, each substantially conforming to an indentation in the eye piece 14. Preparatory to assembling, alternate projections 1515-1515 are turned up, the eye piece 14 is placed between the upturned projections and rests by means of the seats 6-666 upon the projections 1515 15-15 that have not been turned up. Then the upturned projections are turned back into the indentations with which they register and upon the seats '7777.

Fig. 5 shows my preferred eye 2 of Fig. 2 assembled with a clip similar to that covered in the application above referred to. The drop-wire body 16 is formed with a hole ff to receive the annular body of the eye piece 2. Preferably, the metal of the drop-wire is slightly depressed about said hole. The clip 17 has a hole g--g of sub stantially same diameter as the hole f--f and is formed with two portions 1818 which, after the eye piece 2 is in place are clinched down upon the drop-wire body to secure the clip and to hold the eye piece in place. It being possible to solder the metal surrounding porcelain without cracking the latter, the clip can be soldered to the dropwire body either with or without clinching. With the constructions as delineated and described the eye piece is securely held and is so formed that the yarn passing through cannot contact with and cut, or be cut by, the metal of the clip or of the drop-wire body. There are no crevices to catch adjoining drop-wires or adjacent yarns.

The constructions shown are believed to be novel as well as useful and therefore, without limiting myself to the precise forms and. constructions shown and described, I claim as my invention:

1. The combination with a drop-wire eye-piece of annular form and having oppositely faced seats at the annular periphery, of a drop-wire with an opening to receive the annular form of the eyepiece, and projections formed by gashes extending from the hole into substance of the dropwire, which projections constitute the setting to hold the eye-piece in place.

2. The combination with a drop-wire eye-piece of annular form and having oppositely faced seats in planes substantially parallel to the midplane of the annulus, of a drop-wire body having an opening to receive the eye-piece, and projections to engage said seats to secure the eye-piece to said drop-wire body.

3. The combination with a drop-wire eye-piece of annular form and having oppositely faced seats in planes substantially parallel to the midplane of the annulus, of a drop-wire body having an opening to receive said eye-piece, and projections extending inwardly into said opening to engage said seats and secure the drop-wire.

4. An eye-piece for a drop-wire having an annular body and a plurality of seats that are approachable in a direction substantially parallel with the axis of said annular body without obstruction.

5. An eye-piece for a drop-wire having an annular body and a plurality of external seats at substantially the median plane of said body, certain of said seats facing oppositely to others and each seat with an unobstructed Way of approach in a direction perpendicular to said plane.

6. An eye-piece for a drop-wire comprising an annular body formed with a relatively thin flange projecting from its periphery with the body of the eye-piece extending axially at either side of the flange.

7. An eye-piece for a drop-wire comprising an annular body formed with a single median peripheral flange spaced inwardly from the op posite sides of its body.

8. In combination, an eye-piece having recesses 100 on its sides forming oppositely faced seats, and a drop-wire having an opening to receive the eyepiece with radially-extending projections engag ing the opposite seats to secure the eye-piece in place on the drop-Wire.

9. In combination, an eye-piece having an annular body with a peripheral flange, and a dropwire having an opening for receiving the eye-piece with projections at the rim of the opening straddling the peripheral flange to secure the eye-piece 110 in the opening of the drop-wire.

EDWIN C. SMITH. 

